Magnet A has twice the magnetic field strength of magnet B and pulls on magnet B with a force of 100 N. The amount of force that magnet A exerts on magnet B is
A) about 50 N.
B) exactly 100 N.
C) more than 100 N.
D) not enough information
Answer: B
You might also like to view...
A beam of electrons passing through a magnetic field experiences maximum deflection if the direction of the beam is
A) parallel to the field lines. B) perpendicular to the field lines. C) none of these
The singularity of a black hole
a. is found outside the event horizon. b. is located within the event horizon. c. can only be located if the black hole is in a binary system. d. doesn't exist since all black holes have a finite size.
The ____ of a telescope is a measure of its ability to show fine detail and depends on the diameter of the objective
a. light-gathering power b. focal length c. magnifying power d. resolving power e. spherical aberration
A rod with a diameter of 2.00 mm projects 20.0 mm horizontally outward from a wall. A 2.00 N coat is hung from the end of the rod and the rod deflects downward by 
The shear stress of the rod is
a. 
b. 
c. 
d. 
e. 